Ore-concentrator



1. MCGALLIARD. ons coNcEN'mMoR. v APPLICATION FILED OCT. 5, 1918.

Patented Mar. 1, i921.

2 SHEETS-SHEET 1.

lnven-tor Joseph W. Mc Gallia? J. W. MCGALLIARD. ORE CONCENTRATOR. APPLICATION FILED 091.5, 191e.

Patented Mar. 1,1921.

2. SHEETS-SH-EET 2- 'Witness charged through STATES PATENT orties* JOSEPH W. MCGALLIARD, OF LOS ANGELES, CALIFORNIA, ASSGNOR 0F ONE-HLTO `NICHOLAS A. DARCY,

OF LOS ANGELES, CALlFORNIAQ onu-CONCENTRATOR.'

T o all whomy it may concern.'

Be it lmown that, JOSEPH W. MCGAL- Liann, a citizen of the United States, residing at 7619 lVhitsett avenue, in the city of Los Angeles, countyof Los Angeles, and State of California, have invented'new and useful Improvements in Ore-Concentrators,v

the table, and this invention relates mainly to the construction and arrangement of the cut-outs and the table surface. Y

in machines of this kind the table slopes somewhat from the head to the tail and the concentra-tes are taken out from the loottoni of the table by means of a concentrates pipe which is arranged underneath a collector that ison the table surface and opens toward the hea-d of the table and is covered by a guard through which water is disa pipe arranged under the guard and between the tail end vof the table and the concentrates discharge device.

This invention relates to a novel construction and combination including the form and-arrangement of the discharge surface, and the construction and arrangement of the guard and the concentrates outlet.

in object is yto facilitate the delivery of concentrates to the collector; to facilitate the discharge of theconcentrates in anreguF lable way without any danger of clogging, and to provide for a rapidand certain separation of the concentrates from the tail-V ings at the inlet of the guard.

The invention 1s applicable withy either" Specification of Letters Patent.

subjoined detail descripp Figure l is a side elevation of. aV concentrator constructed in 'accordance with this invention.

2 is a plan of the same. Y

Fig. 3 1s anl enlarged inverted plan in section on line m3,Fig. l.' n v Fig. 4 is an enlarged transverse section on line x4, Figs. l, 2 and 3; some parts being omitted. y .y

Fig. 5f. is a plan on an enlarged scale of one of the cut-outs. i f' Fig.v 6 is a longitudinal midsection on line we, Fig. 5f i y A Fig. 7 is a on line m7, Figs. 5 'and 6.1

Fig. 8 is a grouped detail ofthe lip show ing the same in plan, two end elevations'and one side elevation. f

F ig. 9 is a plan of thesadjustable concen-` trates collector; v p 7 Fig. l() 1s a sectional elevation on line x1", big.- 9, adJusted wide open.

` trough open at the top and at the tail end and said table may be made of any suitable Patented Mar. 1,1921. Appueatioiiaiea october 5,1918. seriaiNaasP/,slr

fragmental sectional `detail f material, such as the wooden bottom yl and wooden sluicey walls Qand, the weird-y and the head box 5 with-partsv pertaining thereto. rlhe .table .is supported by any suitable means as the springs 6 adjustably iXed at 7 p to a support 8;l said table being'vmounted upon said springs by the bearing 9 for allowing the table to be reciprocated endwise vby the reciprocating mechanism l0.

In the .form shown the table is .illustrated as having two sluice-ways a, bfone extending from the weirto the tail between the walls 2 and 3 and the .other extending from weir to tailbetween the wall 8 and the wall 2;Vthe walls 2 and 2 ,corresponding .to each other and forming the side walls of the table, and the wall 3 forminga partition between the sluice ways.

4 The wooden bottom 1 of the table is provided in its surface with the shallow grooves l1, 1.1 that extend from Weir to tail of the machine; each of said grooves being a slight depression, deepest at the longitudinall collecting mid-way c and sloping gradually downward from each of the sluice-way side walls. so that the surface of thi'.` 'floor at each 'edgerof the sluice walls isl higher than c of each sluice.

The water inlets 13 and concentrates outlets 14 are arranged with their axes intersecting the mid-line of the collecting surface and being normalthereto.

The collectorsJ 15 arel in the form of sheet metal members that are fastened tothe surface table by collars 16 screwed down upon the base flanges 17 .at the tails of said collectors; each of said collectors having toward the head of the table from its flange 17, a raised andrecessed body comprising the'end wall 18, the side walls 19 and the top 20.

Over each collector there vis arranged a guard G open at the head end and closed at top, sides and tail. The collector 15 is spaced from its' guardr at the top allowing between the top ofthe collector and the under side of the top of the guard, a' free passage 21 through which the water or air, from the water hpipe 13 may flow backward toward the mouth 22 of the guard. Said guard is provided internally7 with the conveX pressure deflecting cross bar 23 at a distance from the head edge 24 of the guard cover, and the separating table 25 projects beyond the head edge24 of the guard and toward the hea-d of the table forming aV central wash passage 2G down whichr the concenv, trates may flowalong the mid-way and also Y forming an upper passage v27 just below the head edge 24 of the guard. Saidseparating table has its tail edge d spaced apart from v the headedge e of the pressure bar 23 to form a concentrates inlet 28 to the wash passage 26.

The collector is provided .with side wings 29 fitting against the parallel sides of the guard walls 30, and the head ends of said wings 29 are arranged to form tailward converging walls 31 forming the flaring passage 32 leading also from andinto the collector chamber for the purpose of guiding the flow of water from the collector chamber simultaneously with the flow of concentrates int-o such chamber. .Tailward converging rifiles 33 extending obliquely downward along the table surface from the side Ywalls of the sluice-way to the head corners of the guard are provided for each'cut-out and said riiiles are somewhat deeper adjacent to the sido walls than they are at the guards or cut-outs,

so that the current'of pulp flowing down in the sluice-way will be directed away from the sluice walls toward the mid-line of the table.

The concentrates discharge comprises the vertical pipe 34 projecting above the linoleum surface V12 and extending slightly abovethe linoleum surface at the lower por#y tion or mid-way of the trough together with a bevel valve 35, the stem 33 of which extends down to the lower end of said pipe 34 and is there reversely bent as shown at 37 and projects upwardl)7 and has a screw threaded limb 38 arranged between two brackets 39, 40 through which the stem 38 passes. `A nut 41 is screwed upon the stein 38 and acts upon the spiralspring 42 and upon the lower bracket 39, 'the spring 42 being held down plan and .is adapted to snugly fit the boreof the concentrates discharge pipe or port 34` so that by lowering the valve until the charge 43 is on a level with the top end ofthe concentrates pipe 34, the outlet `through said concentrates pipe will be shut oif entirely, On the reverse movement the outlet between by the upper bracket 40, so that the operation the top end of the pipe 34 and the head edge of the valve, opens; and said outletV is of greater horizontal width than the depth of the space below the bar 23 as it progresses inside so that any concentrates which may find their way into the opening will pass freely' from the cut out and willnot clog,

no matter to what fine outlet the concentrates charge may be adjusted.

lQhe concentrates trough 44 extendsV from head to tail of the table beneath the concentrates pipe 34 to receive the concentrates which may iiow downward therefrom together with the wash water.

The collector vmay be variously constructed, and in the form shown in the drawings, the bar 23 and washing table 25 are connected by side pieces 26 formed integralwith said barand table; and the head end of the guard proper is adapted to receive the saine and allow 1t to be inserted and relmoved without disturbing the main body of' the guard which is fastened to the linoleum topby screws The front end 'the side walls ofthe guard are provided with notches 46 to accommodate thereduced end of the inlet member formed of the table supporting har and the side walls of the inlet.

The table is reciprocated endwise hy any suitable head motion 48.

tributers 50, 51, in the form of staggered shelves downwardly sloping toward and away from the tail to deliver the pulp evenly through the weir from which it flows down onto the table.

The opposite edges f of the surface formed by the linoleum top at any cross sectional` plane, are on a common level; but the head of the table top is slightly higher than the tail, so that as the table reciprocates endwise the contents thereof will be agitated by the converging ritlles 33 and` will haveV a gentle flow toward the tail and may be run in a stream of considerable depth depending upon the length of the' table and the relative specilic gravities of the materials to be separated. f

lt is evident that the heavier materials will settle most quickly, and that owing to the low grade of the sluice floors from end to end and the slope given by the midway of the table, the heavier materials rapidly reach vthe mid-way. The pulp in practice ills the space between the converging riiiies 33, and the gang may entirely cover said ritlles and the guards; but the chambers of the guards are 1Kept ree from the gang by the wash water supplied through the pipes 15 to the tails of the guard chambers, and flowing out at the heads of such chambers. The concentrates are shifted tailward underneathv the current of wash water by the reciprocation of the table.

Said wash water is. regulable by the valves 52, and in practice the attendant may regulate the torce of the wash water so as to eX- clude any particular specific gravity from any particular collecting chamber beneath the guards. The wash water liows above the level of the collecting chamber and is thereby shunted over the inlet to said chamber and the upper portion of the stream of wash water flows out in a horizontal plane through the top outlet 53 and across the concentrates inlet 28, while another portion ot the wash water is shunted by the lower edge of the convex bar 23 downward `across the path of the incoming concentrates which are given their impetus downward along the table by the reciprocating motion and the slight incline ot the table. The water is given a more forceful effect by the narrow bottom outlet or ejector throat 54, and passes therethrough with more force than through the upper voutlet 53, and the wash water lowswith less force past the concentrates trap 28 and out through the inlet 26. The result of this is to pile the lighter material up at the vliront end of the guard whence it is lioated Yoil"V by the ontlowing Vwater Vand tailings.

The water inlets 13 are supplied by the piping system that is secured by straps 56 .to the bottom ot the device as shown in Figs. 1,3 and 4; .and this piping system Y is connected by atlexihle pipe 57 to a water supply not shown. f

In. practice the table may be adjusted at will to any desired pitch from head to, tail, and to true transverse level at any pair of springs, by loosening the jam nuts 131 and turning the sockets 101up or down as may be necessary. Then the'jam nuts will be tightened to maintain the adjustment. n l

The slanting' under face ot' the valve' is at such an anglethat when the valve is fully open, the outlet is o'lfrlargerv dimensions than the depth of the ejector vthroat 54 so that any clogging oi the concentrates may be relieved by opening the valve widely. No concentrates toc llarge to pass the fully opened valve outlet, can pass through the ejector throat 54.

It is understood that the fluid medium for enlivening the pulp and allowing gravity and inertia to effect the separation may beeither water or air yunder pressure lintroduced through the piping system 55 and in the case of compressed air, the pressure at the cutLouts is regula-ted by the valves 52 which serve to regulate the water in the op-v eration Vjust described.

B 'makin a tree headward aassave over l :s Y

the collector for fluid' from the Huid inlet 13, thelilrelihood of clogging around the collector is avoided so that the concentrates ow tailward into the 'collector beneath the fluid current.

and below the obstruction formed by the cross bar carries headward any tailingsthat may have passed 'the' wash table and under the head edge of the guard'.`

IVclaim:- l i Said current flowing above' 1. In combination with the surface out a Y open toward the head and closed toward the tail ot the table; a 'guard open at the head and closed at the top, sides and tail and forming a cover for the collet-tor; the collector being `spaced froml the guard at the top allowing between the top vof the .collector and underside of the top of the guard a free passage through which fluid may flow toward the mouthot the guard; means to supply fluid to the tail ot'V the collector so that it may flow over thecolleetor toward concentrator table, aV concentrates collector the mouth ofthe guard; said guard being provided internally with a convex transf verse deecting cross bar at the head edge of the guard a separatingtable projecting beyond the outer head edge or the guard and toward the head of the table, forming acenter wash passage down which the conventrates mayflow and also forming-an outer'l passage just below the head edge of; the

guard; said separatingftable having -itstail Y charge, a guard therefor eA edge spaced apart tromV the head edge of the transverse bar and forming a concentrates inlet` to the wash passage,

V2. Inv combination with a concentrator table surface; a collector having` a chamber opening towardthc head and closed toward thetail oi the table; and concentrates outi let opening downward; a valve head having a sharp head edge that may be adjusted to close the top of the concentrates outlet; said head being adapted to snugly iit thevbore of the concentrates outlet and having its under tace beveled downward toward the tail ot the table.

In a concentrating*table the combina tion with a concentrates collector and dis- `ndiug toward and opcii toward the head of the table, and means to supply iiuid at the tail oif the collector under the guard; a cross bar arranged under the head end oi' the guard and spaced from the guard and table surface to forni passages above` and below the cross bar.v

4. In a concentrating table the combination With a concentrates collector and discharge, a guard therefor extending toward and open toward the head of 'the table; and means to supply iiuidat the tail of the collector under the guard; a cross bar arranged under the head end o'if the guard and spaced froni'the guard and table surfaces to form passages above and below the cross bar; and a table'located at the head end of; and spaced irom the guard and 'from the table surface and also 'from thecross vbar to afford free passages for concentrates, wash liuid and tailings;

5. In combination with a concentrator table surface and a guard having a chamber above. such surface opening toward the head and closed toward the sides a,WL tail of the table; a collector covered by said guard and being provided with side wings litting against the'iuner sides of the guard walls; the head end el said Vwings being arranged to formA tailward converging walls forming a flaring passage leading` 1from and into the collecting chainberfor the purpose of guiding the flow of fluid from the collecting chambers simultaneously with the flow of concentrates into such chamber; and tailward coni/*erging riiiles extending obliquely tailward along the-table surface tothe head corners of the guard.

6. In combination with a concentrator table surface and a guard having a chamber opening toward tha head and closed toward Vthe sides and tail of the table; a collector provided with side wings fitting against the inner sides of the guard walls; the head ends of said wings being arranged to iorm f tailward converging walls forming a flaring passage leading froniand into the collector chamber for the purpose of guiding the flow .of Huid from the collector chambers simultaneously with the iiow of concentratesY into such chamber; tailward converging riiiles extending Vobliquely tailvvard along the table surface to the head corners of the guard; said riiiies diminishing in height toward the guards so thatA a current of pulp flowing tailward on the table will be directed toward the collector and may completely submerge the rifi'les. i v

T. .iin ore concentrator table consisting of a slanting trough provided withsidesu and a middle wall extending the length of the trough; shallow grooves in the bottoms of the divided sections ruiming the full length of the table and deepest midway in cross section; ri'iiles in pairs extending from the walls downward, converging at the midway; in combination `with collectors at such convergence; a guard which covers each ot' said collectors and is provided with a convex faced deiiecting bar; a separating table projecting beyond the head of the guard; means for guiding concentrates thereto; means for iiushing the trough; and resilient means for reciprocating the table.

8. In an ore concentrator table; the combination with a trough, a trough support, and means for agitating the trough; of downwardly converging riiiies to a common center line; a collector at such convergence having ra recessed body; a guard over the collector; means for admitting water between the top of the guard and the top of the collector; a convex faced deilect'ing cross bar in the guard; a separating table spaced apart from the said cross bar to :torna a cencentiates inlet to a central wash passage formed by the head of the separating table, said table projecting beyond the head of the guard; there being water inlets and concentrates outlets; their axes intersecting the midline of the collecting surface.

9. An ore concentrating table comprising a trough; a. collecting chamber in the trough provided. wth a recessed body open toward theliead of the table; a guard over the collecting chamber; open at its head end and closed at its top, sides and tail; its top being spaced from the top of the collecting chainber to provide a :tree water passage to the mouth oi the guard; a convex uetiector in the guard; a separating table project-ing beyondV water to the table; means for supplying ore to vthe table; and means for reciprocating the table.

l0. In a concentrating table, in combination with a trough, rifiles in the trough, a

collecting chamber in the trough, a guard over the collecting chamber, a convex raced detlector in said guard; and means to supply ore and water to the trough; of an outlet in the collecting chamber, a valve in said outlet provided with a slanting under surface adapted to present a forward opening` longer than provided by the vguard delcctor; and resilient means orcontrol of said valve.

ll. In a concentrating table, a collecting chamber, a guard over said chamber, a convex pressure delecting cross bar in said guard; and a separating tableadjacent the detlecting cross bar to provide an outlet for wimceutrates to Vthe chamber. i

152. En a concentrating table, in combination with a trough, al collecting chamber in the trough, ot an inlet for concentrates controlled by a convex deflector; and a valved concentrates discharge having its outlet larger than the inlet and adjustable to control the :flowV of concentrates from the collector. Y

13. In a concentrating table, a trough, a central level passage in said trough; a plurality of collectors in said passage; concentrates outlets in the collectors; a water supplymeans; means to regulate the water sul ply; means for directing the water flow -above the collectors and shunting it over the inlet to said collectors; convex bars adapted to deflect a portion of' the water and to narrow and concentrate its flow to give it added force at its outlet; and means to guide the gangue from the sides of the trough to the cent-ral levels and to the col- Y lectors. Y

between the lugs; a compressionl spring'` around the stem between the lugs and above the nut, and adapted to hold the valve closed normally, said valve to be opened and held open as wide as desired by an upward screwing of said nut.

In testimony whereof, I have hereunto set on said threaded end andy my hand at Los Angeles,California, this 25th day of September 1918. g

vJOSEPI-I W. MCGALLIARD.

. Witness: v JAMES R. TowNsEND. 

